Can you write pandas dataframe into an avro file without specyfing the schema?

Question

I read an excel file into a dataframe using pandas and now I have a requirement to save it as an avro file for further processing of a different step in a script.
As an input to each step I specify a number of parameters in a json but I don't have a real schema, only a column's names array.
Is there a possibilty to write the dataframe to an avro file without specyfing the schema or by just using the column's names array?